Caterpillar Performance Handbook, January 2017, SEBD0351-47

Ground Contact Pressures

Soil Compactors

815K and 825K Ground Contact Pressure/Soil Compactors 815K Tip

Weight Front Axle 9664 kg (21,305 lb) Ground Contact Pressure

Weight Rear Axle 12 722 kg (28,047 lb) Ground Contact Pressure

Contact Area FourWheels

Tip Penetration

kPa

psi

kPa

psi

cm 2

in 2

12.5 mm (0.5 in) 25 mm (1.0 in) 38 mm (1.5 in) 50 mm (2.0 in)

4727.05 1347.92 902.52 658.45

6989.35 1827.94 1094.20 872.95

425.81 1445.16 2077.42 3064.51

685.6 195.5 130.9

706.7 215.7 156.8

66

224 322 475

95.5

97.7

Weight Front Axle 14 469 kg (31,899 lb) Ground Contact Pressure

Weight Rear Axle 21 059 kg (46,427 lb) Ground Contact Pressure

825K StandardTip Tip Penetration

Contact Area FourWheels

kPa

psi

kPa

psi

cm 2

in 2

12.7 mm (0.5 in) 25 mm (1.0 in) 38 mm (1.5 in) 50 mm (2.0 in) 75 mm (3.0 in) 100 mm (4.0 in) 125 mm (5.0 in) 150 mm (6.0 in) 175 mm (7.0 in) 200 mm (8.0 in)

7178.41 2609.39 1411.35 704.99 610.19 421.68 382.52 324.33 311.09 139.55 7615.41 6199.83 3614.20 1621.44 970.64 774.28 570.89 443.13 417.06 389.07 381.07 128.59 kPa

8092.55 2941.72 1591.10 794.76 687.89 475.39 431.27 365.63 350.74 157.34 8585.20 6989.35 1915.27 1827.94 1094.20 872.95 643.56 499.59 470.22 438.64 429.61 145.00 kPa

407.65 1121.55 2073.54 4150.96 4795.60 6939.86 7650.04 9022.18 9405.66

1041.14 378.46 204.70 102.25

1173.73 426.66 230.77 115.27

63.19

173.84 321.40 643.40 743.32 1075.68 1185.76 1398.44 1457.88 3249.72

88.50 61.16 55.48 47.04 45.12 20.24

99.77 68.95 62.55 53.03 50.87 22.82

20 965.89

Weight Front Axle 14 469 kg (31,899 lb) Ground Contact Pressure

Weight Rear Axle 21 059 kg (46,427 lb) Ground Contact Pressure

825K Heavy DutyTip

Contact Area FourWheels

Tip Penetration

psi

psi

cm 2

in 2

12.7 mm (0.5 in) 25 mm (1.0 in) 38 mm (1.5 in) 50 mm (2.0 in) 75 mm (3.0 in) 100 mm (4.0 in) 125 mm (5.0 in) 150 mm (6.0 in) 175 mm (7.0 in) 200 mm (8.0 in) 225 mm (9.0 in) 250 mm (10.0 in)

96.07

1104.52 899.21 524.19 235.17 140.78 112.30

1245.18 1013.72 277.79 265.12 158.70 126.61

14.89 73.16 66.74 279.72 467.32 585.80 794.56 1023.56 1087.52 1165.72 1190.24 3526.84

472.00 430.61 1804.64 3014.96 3779.35 5126.18 6603.60 7016.24 7520.76 7678.95

82.80 64.27 60.49 56.43 55.27 18.65

93.34 72.46 68.20 63.62 62.31 21.03

22 753.76

22-18 Edition 47